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Elcie Mycology
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Registered: 04/21/24
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Gypsum vs no Gypsum
#28778429 - 05/18/24 08:19 AM (1 month, 8 days ago) |
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I want to hear from both sides. When it comes to grain spawn and substrate, what made you decide to use or not use gypsum? Any differences you noticed between the two styles?Thanks for your input. Elsie
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Herme5
Trismegistus



Registered: 04/27/24
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Quote:
Elcie Mycology said: I want to hear from both sides. When it comes to grain spawn and substrate, what made you decide to use or not use gypsum? Any differences you noticed between the two styles?Thanks for your input. Elsie
Gypsum is not reccomended here at the shroomery, it makes no noticeable difference.
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HILLBILLY OUTLAW
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Registered: 04/21/22
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Iโve never used gypsum in my grain prep personally.
I started out using gypsum in my substrate with a basic CVG formula. Eventually ran out and stopped putting it in with no noticeable difference in growth performance.
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bridge2far


Registered: 10/09/21
Posts: 413
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Quote:
Elcie Mycology said: โฆwhat made you decide to use or not use gypsum? Any differences you noticed between the two styles?...
Reports from other Shroomerites and my experiences led me to stop using gypsum.
Differences? - no difference in results. - simpler grain & sub prep by not fucking with gypsum.
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Elcie Mycology
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Registered: 04/21/24
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Thanks
-------------------- If you arenโt learning, youโre losing
 
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vicepope
The devils best grower



Registered: 04/15/24
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I'm very pro gypsum and lime. I find in my straw substances that it holds together better, better color in fruit,no yeild different but helps me in many lazy ways, when I throw my substance as compost for plants they yeild better, my chickens eggs shells are thicker 1/5th mm and test better after I feed them substance. People don't like it as a volume filtering but it even cheaper in then chopped straw and coir.
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ReverendMyc
succinct is not my forte

Registered: 03/29/19
Posts: 2,006
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Re: Gypsum vs no Gypsum [Re: vicepope] 1
#28778661 - 05/18/24 12:31 PM (1 month, 8 days ago) |
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EDIT: Looks like about half of what I said below is inaccurate so check out this info instead.
Gypsum is widely agreed here to be completely unnecessary for cubes (in coir) because they don't require a casing or nutrients in the substrate. I do still use it in my casing for exotic slow fruiters.
My understanding is that the lime has a higher reactivity and loses its ph effect over longer periods of time so the gypsum is the buffer to help maintain the ph over a longer period for things like subtropicalis. I have not seen anything that seems to contradict this. But have not done the testing myself so I won't die on this hill.
I have also tried it in low prep/no prep jars to make them easier to break up. All it seemed to do was make the grain dirty and harder to read for contamination. The key to low prep grain is the right amount of water for the grain type and sufficient time at temp. Too much water and you get a difficult to break lump in the bottom, with or without gypsum, ime.
Never tried straw, but I have read that is can be treated with a base bath to prep it as a substrate, so that is a possible use that probably gets mostly overlooked here. But for a new grower, coir is a much more forgiving substrate (if you can get past the non-zero negative environmental impact (but is it worse than the impact of mining of gypsum?)). I would like to try straw, corn cob or alternate substrates down the road, though.
Wait. What were we talking about?...
Edited by ReverendMyc (05/23/24 09:12 AM)
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vicepope
The devils best grower



Registered: 04/15/24
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Loc: The fear that burns in the hea...
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Quote:
ReverendMyc said:
Wait. What were we talking about?...
Weather gypsum is good or bad. Op was asking because of very old information probably form Google and was asking for advice, no one likes gypsum, he'll gypsum in grain was so old that it was used in eith adding potatos to grain water as your boiled it. Point is if you got gypsum, use some of it, don't make a special trip to buy it for your first time.
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hannibal_barca


Registered: 07/15/21
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Re: Gypsum vs no Gypsum [Re: vicepope]
#28784572 - 05/23/24 03:39 AM (1 month, 3 days ago) |
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I used it a few times and saw no noticable difference. I dont use it anymore as its just an extra step for nothing.
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